"Understanding the blockchain hype: Why much of it is nothing more than snake oil and spin". An Economic-Historical Analysis of Money, Its Functions and Its Prerequisites. A b Daniel AJ geld mit amazon verdienen Sokolov: Schallplatte als Wallet für Bitcoins und andere Kryptowährungen. "Labels may be losing money, but artists are making more than ever". After early " proof-of-concept " transactions, the first major users of bitcoin were black markets, such as Silk Road. Transactions contain some data which is only used to verify the transaction, and does not otherwise effect the movement of coins.